Manual

Canada
USA
9A Aviation
Point-Claire, QC H9R 4Z2
PH 514-428-8090
Fax: 514-428-8899
1801 Parkway View Drive
Pittsburgh, PA 15205
PH: 412-788-2830
FAX: 412-788-4890
Series DRG
Paddle Flow Sensor
www.kobold.com
Precautions
•
User's Responsibility for Safety: KOBOLD manufactures
a wide range of process sensors and technologies. While
each of these technologies are designed to operate in a
wide variety of applications, it is the user's responsibility to
select a technology that is appropriate for the application, to
install it properly, to perform tests of the installed system,
and to maintain all components. The failure to do so could
result in property damage or serious injury.
•
Material Compatibility: The DRG process wetted
parts for the various body materials are stated below.
Make sure that the DRG is chemically compatible with
the application liquids. While the sensor’s outer housing
is liquid resistant when installed properly, it is not
designed to be immersed. It should be mounted in such
a way that it does not normally come into contact with
fluid.
•
Proper Installation and Handling: Use a proper sealant
with all installations. Never overtighten the sensor within its
fittings. Always check for leaks prior to system start-up.
•
•
Wiring and Electrical: This is an electrically operated
device and only properly trained personnel should install
and maintain this product. Be sure that the power supplied
to the sensor is appropriate for the electronics supplied.
Electrical wiring should be performed in accordance with all
applicable national, state and local codes.
Flammable, Explosive and Hazardous Applications:
The DRG is not an explosion-proof design. It should not
be used in applications where an explosion-proof
design is required.
•
Make a Fail-Safe System: Design a fail-safe system
that accommodates the possibility of sensor or power
failure. In critical applications, KOBOLD recommends
the use of redundant backup systems and alarms in
addition to the primary system.
•
Temperature and Pressure: The DRG is available in
several material combinations. Temperature and pressure
maximums vary depending upon the material selected.
Operation outside these limitations will cause damage to
the unit.
Specifications
Electrical (continued)
Output L342:
Accuracy:
±3.0% of full scale
Wetted Parts
DRG-11:
Bronze, Acrylic, PTFE, Ceramic, NBR
DRG-12:
Bronze, PTFE, Ceramic, NBR
DRG-14:
316SS, Acrylic, PTFE, Ceramic, FKM
DRG-15:
316SS, PTFE, Ceramic, FKM
DRG-18:
PP, PTFE, Ceramic, NBR
Max. Pressure:
DRG-18:
100 PSIG
DRG-11, 14:
230 PSIG
DRG-12, 15:
580 PSIG
Temperature Range: -10°F to +176°F
Electrical Protection (all versions):NEMA 4X/IP 65
4-20 mA, 2-wire, Rmax < 500 ohms, 24 VDC
Connection: 4 pin, M-12 Micro-DC plug, male
Output L343:
4-20 mA, 3-wire, Rmax < 500 ohms, 24 VDC
Connection: 4 pin, M-12 Micro-DC plug, male
Output L442:
4-20 mA, 2-wire, Rmax < 500 ohms, 24 VDC
Connection: DIN 43650 (Hirschmann) plug
Outputs C34P & C30R
Output C34P: 4-20 mA, 3-wire, Rmax < 500 ohms + 1 PNP
switch
Electrical (refer to model number table for model codes and
descriptions for each output type)
Output C30R: 2 PNP switches
Output F300
PNP Pulse Output:
Display:
3-digit LED
Switch Type:
PNP open collector, 24 VDC, 300 mA max.
Connection:
5 pin, M-12 Micro-DC plug, male
PNP open collector, 25mA max.
Input Power: 14-28 VDC
Connection: 4 pin, M-12 Micro-DC plug, male
Power Supply: 24 VDC ±20%, 80 mA max.
PDF Rev. 12/13
DRG_manual_12-13
Part Number Decoding
Flow Range
GPM Water
Nominal
freq. at
f.s. (Hz)
0.15 - 3
0.15 - 6.6
0.3 - 8
0.6 - 12
0.8 - 23
1.5 - 37
3 - 37
120
217
184
215
265
116
180
Material Combination & Flow Range
Fitting
Output/Electronics
DRG-11 DRG-12 DRG-14 DRG-15 DRG-18
..50
..55
..60
..65
..70
..75
..80
..50
..55
..60
..65
..70
..75
..80
..50
..55
..60
..65
..70
..75
..80
..50
..55
..60
..65
..70
..75
..80
..50
..55
..60
..65
..70
..75
..80
N1=1/8” NPT F300=Frequency output, Micro-DC plug
L342=4-20 mA, 2 wire, Micro-DC plug
N2=1/4” NPT L343=4-20 mA, 3 wire, Micro-DC plug
L442=4-20 mA, DIN 43650 plug
N4=1/2” NPT C34P=Compact Electronics,
4-20 mA w/1 PNP switch
N5=3/4” NPT
C30R=Compact Electronics,
2 PNP switches
N6=1” NPT
Accessories
Part Number 807.037=Mating 4-pin Micro-DC plug with 6 ft. cable for output F300, L342, & L343
Part Number 807.007=Mating 5-pin Micro-DC plug with 6 ft. cable for output C34P, & C30R
Electrical Connection for Output C30R & C34P
(5-wire Micro-DC plug)
Electrical Connection for Output F300 and L343
(3-wire transmitters)
Cable: Brown= Pin 1; White= Pin 2; Blue= Pin 3; Black= Pin 4; Gray= Pin 5
Switch out 2
GND
GND
2
1
3
4
5
C30R
Electrical Connection for Output L342
(2-wire 4-20 mA)
+24 VDC
+ 24 VDC power
power
+ (0)4-20 mA
GND
Switch out 1
GND
+ 24 VDC power
1
2
3
5
4
Switch out 1
C34P
Electrical Connection for Output L442
(2-wire 4-20 mA)
Cable
Brown = +24 VDC
Black = 4-20 mA out
Mechanical Installation
Piping Preparation: Piping should be rigidly supported at
both the inlet and outlet of the sensor to prevent potential
damage due to excessive stress on the sensor fittings. In
order to ensure that the fluid flow profile is fully developed
and symmetrical, a minimum straight piping run of 20
pipe diameters upstream and 5 diameters downstream
of the sensor are required. The straight runs should be
free of tees, elbows, valves, reducers and other disturbances.
Pumps: All pumps cause pulsations in the fluid. Centrifugal
pumps cause the least amount of pulsations in the fluid and
positive displacement or reciprocating pumps cause the
most. In order to minimize the effect of these pulsations on
sensor accuracy, the sensor should be located as far away
from the pump as possible. A pulsation dampener or accumulator may be used to dampen pulsations if required. If
the fluid pulsations cannot be reduced to an acceptable
level, a field calibration to determine the new K-factor for
the sensor installed in a pulsating system may be required.
Viscosity: All flow range and calibration data assume
water as the flow media. All paddle type transducers are
affected by viscosity and higher viscosities tend to make
the paddle wheel turn slower for a given flow rate. This
results in a lower K-factor when the sensor is used with a
viscous media (i.e. viscosity > 10 cSt.) and the calibration
data provided for water flow is no longer valid. If the sensor
is to be used with viscous media, a field calibration is
required to determine the new K-factor for the sensor.
Field calibration: For frequency output versions, a simple
field calibration may be performed to determine a new Kfactor when the sensor is to be used in a manner in which
the above specified calibration information does not apply
(i.e. use with viscous or pulsating media, insufficient
straight run, etc.). With the sensor installed in the system,
dispense a known quantity of the fluid to be measured
while using a pulse counter to count the number of pulses
generated during the dispense. This information can then
be used to determine the new K-factor specific to your
system and fluid. 4-20mA output and / or Compact
Electronic versions have a preset output span that is not
field adjustable.